The soil on which we really stand

Heidegger, What Is Called Thinking?, translated by Fred Wieck and J. Glenn Gray:

Let us stop here for a moment, as we would to catch our breath before and after a leap. For that is what we are now, men who have leapt, out of the familiar realm of science and even, as we shall see, out of the realm of philosophy. And where have we leapt? Perhaps into an abyss? No! Rather, onto some firm soil. Some? No! But on that soil upon which we live and die, if we are honest with ourselves. A curious, indeed unearthly thing that we must first leap onto the soil on which we really stand.